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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 #include <s32mem.h> |
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18 #include "tsserializeddataprovider.h" |
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19 #include "tsmodel.h" |
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20 // ----------------------------------------------------------------------------- |
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21 /** |
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22 * Leaving constructor. |
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23 * @param observer - data observer |
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24 */ |
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25 CTsSerializedDataProvider* CTsSerializedDataProvider::NewL(MTsDataObserver &observer) |
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26 { |
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27 return new (ELeave) CTsSerializedDataProvider(observer); |
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28 |
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29 } |
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30 |
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31 // ----------------------------------------------------------------------------- |
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32 /** |
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33 * Constructor |
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34 * @param observer - data observer |
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35 */ |
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36 CTsSerializedDataProvider::CTsSerializedDataProvider(MTsDataObserver& observer) |
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37 : |
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38 mObserver(observer) |
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39 {} |
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40 |
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41 // ----------------------------------------------------------------------------- |
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42 /** |
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43 * Destructor |
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44 */ |
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45 CTsSerializedDataProvider::~CTsSerializedDataProvider() |
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46 { |
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47 mData.Close(); |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 /** |
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52 * Interface implementation. |
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53 * @see MTsDataProvider::Data() |
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54 */ |
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55 const TDesC8& CTsSerializedDataProvider::Data() const |
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56 { |
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57 return mData; |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 /** |
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62 * Interface implementation. |
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63 * @see MTsModelObserver::dataChanged(MTsModel &) |
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64 */ |
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65 void CTsSerializedDataProvider::dataChanged(MTsModel &model) |
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66 { |
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67 serializeModel(model); |
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68 } |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 /** |
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72 * Interface implementation. |
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73 * @see MTsModelObserver::dataChanged(TTsModelItem &) |
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74 */ |
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75 void CTsSerializedDataProvider::dataChanged(const TTsModelItem &/*item*/) |
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76 { |
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77 //No implementation required now. |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 /** |
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82 * Serialize source model into internal data storage |
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83 * @param src - model |
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84 */ |
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85 void CTsSerializedDataProvider::serializeModel(const MTsModel &src) |
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86 { |
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87 TRAPD(errNo, serializeModelL(src)); |
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88 if(KErrNone == errNo ) { |
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89 mObserver.DataChanged(); |
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90 } |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 /** |
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95 * Serialize source model into internal data storage. Function can leave. |
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96 * @param src - source model |
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97 */ |
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98 void CTsSerializedDataProvider::serializeModelL(const MTsModel &src) |
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99 { |
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100 const TInt KExpandSize = 256; |
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101 CBufFlat* buf = CBufFlat::NewL(KExpandSize); |
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102 CleanupStack::PushL(buf); |
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103 RBufWriteStream stream(*buf); |
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104 CleanupClosePushL(stream); |
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105 |
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106 serializeModelL(stream, src); |
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107 |
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108 CleanupStack::PopAndDestroy(&stream); |
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109 mData.Close(); |
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110 mData.CreateL(buf->Size()); |
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111 buf->Read(0, mData, buf->Size()); |
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112 CleanupStack::PopAndDestroy(buf); |
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113 } |
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114 |
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115 // ----------------------------------------------------------------------------- |
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116 /** |
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117 * Serialize source model into destination stream. Function can leave. |
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118 * @param dst - destination stream |
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119 * @param src - source model |
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120 */ |
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121 void CTsSerializedDataProvider::serializeModelL(RWriteStream& dst, const MTsModel &src) |
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122 { |
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123 dst.WriteInt32L(src.count()); |
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124 for (TInt iter(0); iter < src.count(); ++iter) { |
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125 dst << src.itemL(iter); |
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126 } |
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127 } |